Demand for video projectors from a reputed company over the last 2 years is shown in table 2. The company is trying to forecast the demand for the year 2022.

Month	Demand	Month	Demand
Jan 20	120	Jan 21	118
Feb 20	105	Feb 21	110
Mar 20	97	Mar 21	95
Apr 20	85	Apr 21	90
May 20	98	May 21	100
Jun 20	110	Jun 21	115
Jul 20	125	Jul 21	122
Aug 20	102	Aug 21	98
Sep 20	92	Sep 21	88
Oct 20	90	Oct 21	79
Nov 20	100	Nov 21	95
Dec 20	115	Dec 21	110